passing sensitive information over wire;options are not enough?

[a.alii85 () gamil com]

I want to know what are means and options available for exchanging password information over 
internet/extra-net/intranet?

In my opinion this is the least researched topic in the field of communication security. 

I mean in the position i find myself right now where i'm asked to research and find alternative methods of exchange of 
credentials which does not include the usual which e.g email or sending it in a sealed envelope. The company i work in 
have business partners all over the world and we are in need of something quick,smart and secure.

Out of band management sounds right but then its so expensive and you can only do it with few limited number of clients 
not with hundred and thousands.

Is there one unified solution which could work for unlimited number of users and not just one or few?

Thank you. I need ideas and more practical ones

regards,
Me

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